Improvement in ventilating water-closets



G. R.MO0RE.

- Ventilating Water-Closets.

No. 214.304. Patented April 15,1879.

N. FEIERS PHOTO-UTHOGRAPHER. WASHINGTON. u c

UNITED STATES PATENT OFFICE.

GEORGE R. MOORE, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN VENTILATING WATER-CLOSETS.

Specification forming part of Letters Patent No. 214,304, dated April15, 1879; application filed March 14, 1879.

To all whom it may concern:

Be it known that I, GEO. R. MOORE, of the city and county ofPhiladelphia, in the State of Pennsylvania, have invented certain newand useful Improvements in Ventilating Water-Glosets, and otherstructures connecting with soil-pipes and sewers, which improvements arefully set forth in the following specification, reference being had tothe accompanying drawing.

The object of myinvention is to provide improved facilities for keepingpure the air in dwellings provided with modern improvements, bypreventing the passage of sewergas or air of any kind by the way of thewaste and soil pipes into the same, and for carrying off all foul airfrom water-closets, urinals, stationary wash stands, bath tubs, andother structures of similar need, by thorough and efiective ventilation!It is well known that the varying air-pressure in sewers and soil-pipes,occasioned by winds, tides, temperature, and numerous other causes, ismore than an equivalent in force to all the resistance that can beobtained by the ordinary liquid trap. My invention provides against anyevil from all this varying pressure by a suitable vent-pipe, combinedwith a thorough and effectual method of ventilation for the said closetsand structures.

The drawing represents a vertical transverse section of an ordinarywater-closet with soil-pipe and trap, with my vent-pipe andventilating-pipe, and a flue or chimney, all combined in one view.

A is the water-closet proper; B B, the soilpipe, shaped to form a liquidtrap, and designed to be extended usually to a sewer. G is aventilating-pipe from the closet into the flue or chimney. D is a smallvent-pipe from the soil-pipe to the ventilating-pipe E, verticalextension of the ventilatingpipe up the fine, to prevent foul air in thechimney itself, and to secure a better draft. F is the chimney. Grepresents fire-grate for use, if dc sired.

The conditions requisite to a successful operation of this completedevice include heat or some other reliable force to keep up anaircurrent through the ventilating-pipes O and E from the closetconstantly.

It will be seen that the vent-pipe D is much smaller than theventilating-pipe O. This is an important feature, for if the two were ofequal capacity, air from the soil-pipe might at times come in suchquantity as to fill the ventilating-pipe and stop circulation from thecloset.

The purpose of the vent-pipe D is twofoldto take off all air-pressurefrom the soil-pipe trap and to prevent siphonage of the same. Thusprotected and aided by the vent D, the liquid trap in the soil-pipebetween the vent and the closet is relied upon to prevent a circulationof foul air from the soil-pipe into the closet from that side, and theventilating-pipe O E. aided by the heat of a fire in the chimney, or bysome other force, is relied upon to carry off all foul air that may begenerated in the closet itself.

I claim- 1. In combination, a water-closet or other structuresurmounting an outlet-pipe, which has a liquid trap near the closet anda ventpipe upon its opposite side from the closet, combined with aventilating-pipe from the said closet or structure, substantially as andfor the purpose herein set forth.

2. In combination, the closet A, ventilatingpipe 0, vent-pipe D,soil-pipe B, and flue F, substantially as shown.

3. In combination, the closet A, soil-pipe B, ventilating-pipe G, ventD, pipe E, and flue F, substantially as shown.

GEO. R. MOORE.

Witnesses:

ELLwoon BoNsALL, O. J. GILMAN.

